Session: 05-09-01 Open Source CFD Applications

Paper Number: 61944

Start Time: August 11th, 12:50 PM

61944 - Numerical Analysis on the Flow Bifurcation and Heat Transfer Regulation in the Constricted Cavity Under the Transverse Magnetic Field Using OpenFOAM 

The present numerical study emphasized on the improvement and regulation in the heat transfer by dissociation of the flow within the constricted enclosure with the application of transverse magnetic field applied to the enclosure. The in-house solver for the flow and heat transfer with presence of magnetic field is developed using open source CFD toolkit OpenFOAM. The coupling of Navier-Stokes equation with Maxwell’s electrodynamics equation is adopted and the electric potential formulation with Boussinesq approximation is employed in the present solver to analyze the buoyancy-driven free convection flow with the application of the magnetic field. The buoyancy in the fluid is kept constant by retaining the Rayleigh number of 10⁶. The influence of the direction of magnetic field intensity on the flow pattern, and heat transfer rate is reported. The magnetic field is imposed in the y-direction parallel to gravity. The intensity of the magnetic field is enforced in terms of Hartmann number of Ha = 0, 10, 25, 50, 75, and 100. It is noticed that the transverse direction of the magnetic field (B_y) and its intensity alters the flow pattern as well as regulates the heat transfer. The detail discussion of the streamlines, isotherms, and the time average Nusselt number is reported

Presenting Author: Trushar Gohil Visvesvaraya National Institute of Technology Nagpur

Authors:

Ranjit Singh Visvesvaraya National Institute of Technology Nagpur
Trushar Gohil Visvesvaraya National Institute of Technology Nagpur